Will Gadd and Sarah Hueniken climbed the world's most famous waterfall by following a 30-foot-wide (9-meter) strip of rotten spray ice that formed along the edge of a section known as Horseshoe Falls.
Filmmaker Ed Kashi traveled to Central America to document the toll of a deadly kidney disease for a nonprofit group that's working to fight it. The assignment became a passion project.
Americans don't see eye to eye with experts on the safety of many science-driven advances, from vaccinations to genetically modified foods.
A proposal from President Barack Obama could open parts of the U.S. Atlantic coast to drilling for the first time. The area is home to hundreds of animal species.
A new analysis of a giant planet 430 light-years away reveals a ring system 200 times larger than Saturn's.
Living in Venice isn't Carnival every day. It's a vocation that requires stamina and conviction.
Many dams in the United States have outlived their useful lives. A movement to remove them is gaining traction and growing in ambition.
Our bodies are made of remnants of stars and massive explosions in the galaxies, authors say.
Transparent fish and myriad microbes turn up deep below Antarctica's ice.
U.S. proposal could allow unprecedented oil and gas drilling off the Atlantic coast.
How poverty, density, and fragmentation in Sierra Leone's capital city fueled the spread of the deadly Ebola virus.
As an ancient drought took hold, a water temple saw more offerings from desperate Maya, archaeologists report.
The space rock passed by Earth Monday at what sounds like a comfortable distance—about three times the distance of the moon from the Earth—but should we should be doing more to identify potentially dangerous asteroids?
The worst of the worst storms appear likely to hit the Northeast U.S. hardest, thanks to climate change.
As speculation builds about a Greek tomb's potential connection to Alexander the Great, archaeologists are pushing back and urging patience.
A new study says global warming will lead to more extreme swings of the El Niño-La Niña cycle.
Io, Jupiter's vanishing moon, and Neptune, the solar system's most distant planet, challenge stargazers this week.
President Obama's proposal to designate 12.3 million acres of oil-rich land as new wilderness in the Arctic National Wildlife Refuge is likely to stir an explosive federal debate over energy and conservation.
Mud hens, boll weevils, and banana slugs make for unlikely team symbols—but they're all tough in their own way.
The theory is central to life on Earth, says the Science Guy, and helps explain our place in the universe.